linux-kernel - [PATCH 5.12 058/127] ALSA: usb-audio: Configure Pioneer DJM-850 samplerate

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Message-Id: <20210524152336.801530757@linuxfoundation.org>
Date:   Mon, 24 May 2021 17:26:15 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Nicolas MURE <nicolas.mure2019@...il.com>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 5.12 058/127] ALSA: usb-audio: Configure Pioneer DJM-850 samplerate

From: Nicolas MURE <nicolas.mure2019@...il.com>

commit 1a2a94a4392d5d1e5e25cc127573452f4c7fa9b8 upstream.

Send an `URB_CONTROL out` USB frame to the device to configure its
samplerate. This should be done before using the device for audio
streaming (capture or playback).

See https://github.com/nm2107/Pioneer-DJM-850-driver-reverse-engineering/blob/172fb9a61055960c88c67b7c416fe5bf3609807b/doc/windows-dvs/framerate-setting/README.md

Signed-off-by: Nicolas MURE <nicolas.mure2019@...il.com>
Link: https://lore.kernel.org/r/20210301152729.18094-4-nicolas.mure2019@gmail.com
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 sound/usb/quirks.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1511,6 +1511,9 @@ void snd_usb_set_format_quirk(struct snd
 	case USB_ID(0x2b73, 0x0013): /* Pioneer DJM-450 */
 		pioneer_djm_set_format_quirk(subs, 0x0082);
 		break;
+	case USB_ID(0x08e4, 0x0163): /* Pioneer DJM-850 */
+		pioneer_djm_set_format_quirk(subs, 0x0086);
+		break;
 	}
 }